【12 High-Quality Soothing Sounds】: Heartbeat, insect hum, rain, clock, wind, propeller, stream, train, lullaby, and 3 white noise sounds. Simulates airflow, no mechanical structure, no dust. Mimics the natural environment for the most relaxing experience. A lullaby helps your baby fall asleep faster and sleep longer. 【Timer & Precise Volume & Memory】: Easy to use. Play sounds continuously or choose from 3 automatic shut-off timer options: 15, 30, or 60 minutes. 16 levels of precise volume control allow you to set the perfect level for your unique environment, and it remembers the last sound and volume when restarted. 【Soft Night Light & Colorful Ambient Lighting】: Steplessly adjustable brightness for the night light; the soft LED light provides enough, but not too bright, light for your bedroom at midnight. There are also 9 colorful ambient lighting modes - steady or breathing rhythm - creating a romantic and calming atmosphere at home or at a party. 【Easy to Use & Portable & Child Safe】: With a diameter of only 3.5 inches and weighing 5.8 ounces, it's easy to pack in a carry-on bag. Simple and intuitive, lightweight, and easy to carry. It is powered by a USB Type-C charger for charging on the go. Certified with CE, FCC, and RoHS to ensure safe daily use for babies, children, and adults. 【Sound Machine for Better Sleep】: Perfect for creating a distraction-free workspace, bedroom, office, or simply to reduce the distracting effect of outside noise for a more relaxing environment, day or night. It helps you and your baby fall asleep faster and deeper, relieves anxiety, and resists snoring. It's also a great tool for meditation and a fantastic gift for family and friends.